6497091 has 12 divisors (see below), whose sum is σ = 9732632. Its totient is φ = 4331232.

The previous prime is 6497087. The next prime is 6497123. The reversal of 6497091 is 1907946.

6497091 is a `hidden beast` number, since 649 + 7 + 0 + 9 + 1 = 666.

It is not a de Polignac number, because 6497091 - 2² = 6497087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6497291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13126 + ... + 13611.

Almost surely, 2^6497091 is an apocalyptic number.

6497091 is a deficient number, since it is larger than the sum of its proper divisors (3235541).

6497091 is an equidigital number, since it uses as much as digits as its factorization.

6497091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26752 (or 26740 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 6497091 is about 2548.9391911146. The cubic root of 6497091 is about 186.5977129816.

The spelling of 6497091 in words is "six million, four hundred ninety-seven thousand, ninety-one".